[KYLIN-4971] Add new measure bitmap_map for count distinct at fronten…

[Ted-Jiang]

…d. (#222)

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[Ted-Jiang]

Add bitmap_map measure.

only support segmentBuilder and auto add in Advanced Dict UI

[coveralls]

Pull Request Test Coverage Report for Build 7070

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 2 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+0.001%) to 28.094%

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Files with Coverage Reduction	New Missed Lines	%
core-dictionary/src/main/java/org/apache/kylin/dict/lookup/cache/RocksDBLookupTable.java	1	81.08%
server-base/src/main/java/org/apache/kylin/rest/util/QueryRequestLimits.java	1	47.62%

Totals
Change from base Build 7067:	0.001%
Covered Lines:	26715
Relevant Lines:	95091

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💛 - Coveralls

[zhangayqian]

This Additional distinct column in this measure: item should be hidden in bitmap_map measure, because precise count distinct does not support multiple column distinct count.

[Ted-Jiang]

@zhangayqian thxs, already fix.

[zhangayqian]

@Ted-Jiang Nice！Can you merge this two commit to one commit?

[Ted-Jiang]

@Ted-Jiang Nice！Can you merge this two commit to one commit?

sure,fix

[zhangayqian]

LGTM